1. Bell ringer: write the question
What are the two types of homeostasis?
List in order the levels of organization starting with an atom.
How do unicellular organism maintain homeostasis?
What is phagocytosis?

2. Why do cells divide? Cell division occurs in all organism
Single celled organisms divide for reproduction
Multi-celled organisms divide for growth, development, and repair, as well as reproduction

3. What is DNA? The genetic material in cells
Contains information that determines the traits that living inherits and needs to live.
DNA is found in the nucleus

4. What is the relationship between chromosomes, genes and DNA?
The cells nucleus contains Chromosomes made from DNA
DNA contains Genes
A gene is a short section of DNA

5. What are the stages of the cell cycle?
Interphase
Mitosis
Cytokinesis

6. Interphase
The part of the cell cycle during which the cell is not dividing
Cells spend most of their time in this stage
Cell engages in normal life activities, such as transporting materials into the cell and getting rid of waste

7. Stages of interphase G1 S phase (synthesis) G2 G0
The time where the cell makes more proteins so that it can grow to its proper size
S phase (synthesis)
DNA is copied G2
When the cell replicates its organelles
Does a last check to make sure everything is ready for division G0
Cells that become highly specialized
Leave the cell cycle can occur after mitosis or before G1

8. Bell ringer *write the question
In which portion of the cell cycle, do cells spend the majority of their time?
When does DNA get replicated in the cell cycle?
True/False Cell division occurs throughout the cell cycle
What organism can ingest molecules using phagocytosis?

9. Mitosis The process by which cells divide
Responsible for growth and repair
Creates two identical cells
The nucleus divides and creates two identical nuclei

10. What are the phases of mitosis?
There are four major phases
Prophase
Metaphase
Anaphase
Telophase

11. cytokinesis The final step of cell division
This is when the two cells are finally formed